Hello BerndM, I just was replying to JoeG89709 about a similar issue, here is my repost.... I have a 2019 Explorer. I have checked almost everywhere to find no data on wiring Specs, forums or the college of GOOGLE. Even YOU TUBE Academy failed to help resolve my issue. However, I did find (make) a solution. I don't suggest anyone to do this, I am just posting MY solution. On every overhead interior light, the socket contains three wires. Negative, Courtesy and Demand. The center wire which I cut, disables the lights to come on when the doors are opened or when the car is shut off to exit the vehicle. I then cut and tapped into each dome light (center wire) and ran them to the front overhead light console which I added a SPST switch to allow ME to choose WHEN I want the courtesy lights to operate. This did not interfere with the Demand lighting (When you press the light switch). It was a bit tricky but I am a DIYer, so I was up to the challenge. I have heard that there was a wire in the dashboard that if cut, could allow the same results but my signal tracer failed to find the EXACT wire to disable. And yes, I too tried to find the fuse governing the interior lights, that also I failed to find.
